Converting From Trailing To Leading Or Leading To Trailing Casters - Invacare 9000 SL Service Manual

Converting from Trailing to Leading or Leading to
Trailing Casters
NOTE: For this procedure, refer to FIGURE 4.2.
Adjusting the caster headtube position
(leading or trailing) changes the wheelbase
length of the wheelchair. There are two (2)
adjustments which allow for a:
• Longer wheelbase ‐ The caster
headtube is leading or in front of the
wheelchair frame.
• Shorter wheelbase ‐ The caster
headtube is trailing or behind the
wheelchair frame.
NOTE: If the caster headtubes are positioned in
the leading position when using 8‐inch casters,
a 60° footrest is recommended to allow
adequate room for feet and caster swivel.
NOTE: Make note of the orientation of the cam
for proper reinstallation. If changing the
seat‐to‐floor height and/or the seat‐to‐floor
angle, refer to Changing Seat‐to‐Floor
Height/Seat‐to‐Floor Angle on page 29.
1. Remove the two (2) mounting screws,
coved spacer, washer, cam and two (2)
locknuts that secure the insert and the
caster headtube to the wheelchair
frame.
NOTE: The insert will drop if it is not caught.
2. Repeat STEP 1 for opposite side.
3. Position the existing right caster
headtube onto the left wheelchair
frame.
NOTE: Ensure the insert is positioned into the
bottom of the wheelchair frame with the
mounting holes aligned with the frame
mounting holes.
4. Ensure coved spacer is properly
positioned with the rounded end up.
The cut‐out (Detail "A") on the
underside of the coved spacer should
clear the frame joint.
Part No. 1076155
SECTION 4—FRONT CASTERS
Leading
Wheelchair Frame
Coved
Spacer
Cam
Washer
Locknuts
Wheelchair
Frame
Frame Joint
Coved Spacer
Cam
Washer
Locknuts
DETAIL "A" - COVED SPACER
Cut-out on
Underside of
Coved Spacer
FIGURE 4.2 Converting from Trailing to
Leading or Leading to Trailing Casters
27
Mounting
Screws
Frame
Mounting
Holes
Insert
Caster
Headtube
Trailing
Mounting
Screws
Frame
Mounting
Holes
Insert
Caster Headtube
Rounded
End
9000 Series